feat(repos): tags, polymorphic entity_links, attachments

lib/db/repos/attachments.js

@@ -0,0 +1,27 @@
+import { pool } from '../pool.js';
+
+export async function create({ entity_type, entity_id, filename, mime_type, size_bytes, blob_path, checksum }) {
+  const { rows: [r] } = await pool.query(
+    `INSERT INTO attachments(entity_type, entity_id, filename, mime_type, size_bytes, blob_path, checksum)
+     VALUES($1,$2,$3,$4,$5,$6,$7) RETURNING *`,
+    [entity_type, entity_id, filename, mime_type || null, size_bytes || null, blob_path, checksum || null]
+  );
+  return r;
+}
+
+export async function listForEntity(entity_type, entity_id) {
+  const { rows } = await pool.query(
+    `SELECT * FROM attachments WHERE entity_type=$1 AND entity_id=$2 ORDER BY uploaded_at DESC`,
+    [entity_type, entity_id]
+  );
+  return rows;
+}
+
+export async function getById(id) {
+  const { rows: [r] } = await pool.query(`SELECT * FROM attachments WHERE id=$1`, [id]);
+  return r;
+}
+
+export async function del(id) {
+  await pool.query(`DELETE FROM attachments WHERE id=$1`, [id]);
+}